Bike trainer



FIG. 1 is a top right front perspective view of a bike trainer showing our new design.

FIG. 2 is a top left front perspective view thereof.

FIG. 3 is a right side elevational view thereof.

FIG. 4 is a left side elevational view thereof.

FIG. 5 is a rear elevational view thereof.

FIG. 6 is a front elevational view thereof.

FIG. 7 is a bottom plan view thereof; and,

FIG. 8 is a top plan view thereof.

The broken lines represent portions of the bike trainer that form no part of the claim. 

The ornamental design for a bike trainer, as shown and described. 